From: Lijo Lazar <lijo.la...@amd.com>

Add utility functions to get details of xcp and iterate through
available xcps.

Signed-off-by: Lijo Lazar <lijo.la...@amd.com>
Reviewed-by: Le Ma <le...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c | 12 ++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h | 31 +++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
index e8aa4d6c6b62..337d558a3145 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
@@ -256,3 +256,15 @@ int amdgpu_xcp_get_partition(struct amdgpu_xcp_mgr 
*xcp_mgr,
 
        return id_mask;
 }
+
+int amdgpu_xcp_get_inst_details(struct amdgpu_xcp *xcp,
+                               enum AMDGPU_XCP_IP_BLOCK ip,
+                               uint32_t *inst_mask)
+{
+       if (!xcp->valid || !inst_mask || !(xcp->ip[ip].valid))
+               return -EINVAL;
+
+       *inst_mask = xcp->ip[ip].inst_mask;
+
+       return 0;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
index 1d3dc7d68f54..45d590d7fd95 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
@@ -108,4 +108,35 @@ int amdgpu_xcp_switch_partition_mode(struct amdgpu_xcp_mgr 
*xcp_mgr, int mode);
 int amdgpu_xcp_get_partition(struct amdgpu_xcp_mgr *xcp_mgr,
                             enum AMDGPU_XCP_IP_BLOCK ip, int instance);
 
+int amdgpu_xcp_get_inst_details(struct amdgpu_xcp *xcp,
+                               enum AMDGPU_XCP_IP_BLOCK ip,
+                               uint32_t *inst_mask);
+
+static inline int amdgpu_xcp_get_num_xcp(struct amdgpu_xcp_mgr *xcp_mgr)
+{
+       if (!xcp_mgr)
+               return 1;
+       else
+               return xcp_mgr->num_xcps;
+}
+
+static inline struct amdgpu_xcp *
+amdgpu_get_next_xcp(struct amdgpu_xcp_mgr *xcp_mgr, int *from)
+{
+       if (!xcp_mgr)
+               return NULL;
+
+       while (*from < MAX_XCP) {
+               if (xcp_mgr->xcp[*from].valid)
+                       return &xcp_mgr->xcp[*from];
+               ++(*from);
+       }
+
+       return NULL;
+}
+
+#define for_each_xcp(xcp_mgr, xcp, i)                            \
+       for (i = 0, xcp = amdgpu_get_next_xcp(xcp_mgr, &i); xcp; \
+            xcp = amdgpu_get_next_xcp(xcp_mgr, &i))
+
 #endif
-- 
2.40.1

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